sargent tina crab

[gordy]

I live in wisconsin and have a5 year old sargent tina crab that
gets black spots on its leaves in late spring and starts to shed
its leaves in mid july . Any suggestions?

 

[Garden Visions]

Crab Apples

It sounds to me like the disease 'Apple Scab'. It is a condition quite common among crabapple varieties. Over the counter " Ortho Daconil " is recommended for foliar diseases.
Although it looks bad it is usually not harmful to the tree immediately but rather over years. With some TLC the tree should recover fine.



John
Garden Visions Nursery
ISA Certified Arborist, Illinois Certified Nurseryman

 

[John Paul Sanborn]

there are other products that work well for sacb. I understand Daconil may be pulled from OTC markets soon due to use levels in more lucerative industries.

Reasd the label, for it is the law. More is not better because a little is good.

Scab is a wet weather disease so best time to treat is afeter a rain or iff it is real humid out. First app should be aroun the time leaves are around 2/3 out.